The Roman Economy - This site provides academic information and internet links to specialists of the Roman Economy, Numismatics and Epigraphy. Other relevant subjects are the Roman Army, Gender Studies and the American frontier.

RomanSites - Coins and Artifacts - An annotated list of currently 163 websites on Roman coins and objects, partly indexed and loosely ranked. Part of the RomanSites index to over 2,000 sites. Non-commercial with links to other non-commercial sites and coin dealers.

Sear, David R - Comprehensive overview article on eight hundred years of Roman coinage by the numismatist David R Sear, limited number of images. Non-commercial

Severus Alexander.com - This site is dedicated to the study of the Roman Emperor Severus Alexander and his coinage.